Physically unclonable function pattern matching for device identification

An authentication device, comprising:

• a communication interface to communicate with an electronic device;
• a processing circuit coupled to the communication interface, wherein the processing circuit is adapted to:
• receive a device identifier associated with an electronic device;
• receive a first physically unclonable function (PUF) dataset from the electronic device, the first PUF dataset including characteristic information generated from the physically unclonable function in the electronic device;
• identify a pre-stored PUF dataset corresponding to the electronic device using the electronic device identifier;
• and
• authenticate the electronic device by correlating the pre-stored PUF dataset and the first PUF dataset for the electronic device, wherein such correlation is based on a pattern or distribution correlation between elements of the pre-stored PUF dataset and the first PUF dataset.

A non-transitory machine-readable storage medium having one or more instructions stored thereon, which when executed by at least one processor causes the at least one processor to:

• receive a device identifier associated with an electronic device;
• receive a first physically unclonable function (PUF) dataset from the electronic device, the first PUF dataset including characteristic information generated from the physically unclonable function in the electronic device;
• identify a pre-stored PUF dataset corresponding to the electronic device using the electronic device identifier;
• and
• authenticate the electronic device by correlating the pre-stored PUF dataset and the first PUF dataset for the electronic device, wherein such correlation is based on a pattern or distribution correlation between elements of the pre-stored PUF dataset and the first PUF dataset.

An electronic device, comprising:

• a communication interface to communicate with an authentication device;
• a processing circuit coupled to the communication interface, wherein the processing circuit is adapted to:
• provisioning a pre-stored device identifier within the electronic device;
• implementing a physically unclonable function using a plurality of ring oscillators within the electronic device;
• obtaining a dataset including characteristic responses from a plurality of elements of the physically unclonable function;
• and
• sending the dataset including the obtained characteristic responses from the physically unclonable function to the external server.